Skip to main content
Live Webinar with SANS (June 25)— Agentic CTI Automation for Fun & ProfitRegister Free
Mallory
Back to vulnerabilities
Critical

Use-after-free in WebGL in Google Chrome on Android

IdentifiersCVE-2026-9876CWE-416· Use After Free

CVE-2026-9876 is a critical use-after-free vulnerability in the WebGL component of Google Chrome on Android prior to version 148.0.7778.216. The flaw is triggered when Chrome processes attacker-controlled content delivered through a crafted HTML page, leading to access to memory after it has been freed. The available reporting identifies the bug as residing in WebGL and states that successful exploitation could potentially enable a sandbox escape. Public technical detail about the exact vulnerable function or code path is currently not available.

Share:
For your environment

Are you exposed to this one?

Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.

Start free trial
ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation could allow a remote attacker to corrupt memory in the browser and potentially achieve a sandbox escape on affected Android Chrome versions. Supporting advisories also indicate that use-after-free exploitation in this context may lead to broader browser compromise, including possible remote code execution in the browser context. As with similar memory-safety flaws in browser graphics components, impact may include process compromise and follow-on exploitation beyond the renderer boundary.

Mitigation

If you can’t patch tonight, do this now.

No specific workaround or temporary mitigation is provided in the supplied advisories. The practical mitigation is to update affected browsers as soon as vendor-fixed builds are available. Until patching is complete, reducing exposure to untrusted web content may lower risk, but this is not a vendor-documented fix.

Remediation

Patch, then assume compromise.

Upgrade Google Chrome on Android to version 148.0.7778.216 or later. For Chromium downstreams, apply the corresponding vendor updates that incorporate the Chromium fix. Microsoft states Chromium-based Edge is addressed in version 148.0.3967.97. Debian advises upgrading chromium packages to 148.0.7778.215-1~deb12u1 on oldstable (bookworm) or 148.0.7778.215-1~deb13u1 on stable (trixie).
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
GoogleChromeapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

1 SOURCESView more in app
What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
Start free trial
Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2026-9876
NVD
nvd.nist.gov/vuln/detail/CVE-2026-9876
MITRE CWE · CWE-416
Use After Free
Release Notes
chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html
Permissions Required
issues.chromium.org/issues/493747593